docs(README): introduce key facts

README.md

@@ -36,6 +36,19 @@ applications in mind. More on the motivation that drives the project can be foun
 in the section <!--suppress HtmlUnknownAnchorTarget --><a href="#about">About</a>.
 </p>
 
+The key facts about agentMET4FOF are:
+
+- [FOSS project](#contributing)
+- allows to
+  - quickly set up and run a [metrologically enabled multi-agent system](#about)
+  - [handle both static data sets and online data streams](#tutorials)
+  - [consider measurement uncertainties as well as metadata with the provided message system](#tutorials)
+- [installable as a Python package or ready-to-deploy Docker image](#installation)
+- comes bundled with [several introductary and advanced tutorials](#tutorials)
+- accompanied by [several use cases with close-to-industry IIoT applications in 
+  our GitHub organisation](https://github.com/Met4FoF?q=agentMET4FOF&type=&language=&sort=)
+- comprehensive and ever-growing [documentation](#documentation-and-screencasts)
+
 ## Table of content
 
 - [💫 Quickstart](#quickstart)